<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <script src="../react18/react.development.js"></script>
  <script src="../react18/react-dom.development.js"></script>
  <script src="../react18/babel.min.js"></script>
</head>

<body>
  <div id="app"> </div>
  <script type="text/babel">
    /* 
      知识点:
        jsx的插值语法中不能放对象和函数,如果要放一个数据的集合可以使用数组
    
    */
    //假设请求回来我们要学习的课程数据
  /*   const course = ["html","css","js","react","node"];
    // const course = [<li>html</li>,<li>css</li>,<li>js</li>,<li>node</li>,<li>react</li>];

    const vDOM = (
      <ul>
        {
          course.map((item,index)=>{
            return <li>{item}</li>
          })
        } 
      </ul>
    )

    
    //创建容器并渲染虚拟DOM
    ReactDOM.createRoot(document.getElementById('app')).render(vDOM) */

// const course=["html","css","js","react","node"]

// const vdom=(
//   <ul>
//     {
// course.map((item,index)=>{
//   return <li>{item}</li>
// })
//     }
//     </ul>
// )

// ReactDOM.createRoot(document.getElementById("app")).render(vdom)


const course=["html","css","js","react","node"]
const vdom=(
  <ul>
    {
      course.map((item,index)=>{
        return <li>{item}</li>
      })
    }
    </ul>
)
ReactDOM.createRoot(document.getElementById("app")).render(vdom)

  </script>
</body>

</html>